25104972989 has 8 divisors (see below), whose sum is σ = 26844923448. Its totient is φ = 23394265600.

The previous prime is 25104972979. The next prime is 25104973043. The reversal of 25104972989 is 98927940152.

It can be written as a sum of positive squares in 4 ways, for example, as 13146456964 + 11958516025 = 114658^2 + 109355^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25104972989 - 2¹⁶ = 25104907453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25104972929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7308992 + ... + 7312425.

It is an arithmetic number, because the mean of its divisors is an integer number (3355615431).

Almost surely, 2^25104972989 is an apocalyptic number.

It is an amenable number.

25104972989 is a deficient number, since it is larger than the sum of its proper divisors (1739950459).

25104972989 is a wasteful number, since it uses less digits than its factorization.

25104972989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14621535.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 25104972989 in words is "twenty-five billion, one hundred four million, nine hundred seventy-two thousand, nine hundred eighty-nine".